private void Form1_Load(object sender, EventArgs e)
{
//建造者
Directory dir = new Directory();
Builder.Easy.Builder bd1 = new Builder.Easy.ConcreateBuilder1();
Builder.Easy.Builder bd2 = new Builder.Easy.ConcreateBuilder2();
dir.ConStract(bd1);
Builder.Easy.Product p1 = new Builder.Easy.Product();
p1 = bd1.GetResult();
p1.Show();
dir.ConStract(bd2);
Builder.Easy.Product p2 = new Builder.Easy.Product();
p2 = bd1.GetResult();
p2.Show();
}